44730
1.INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY
| *a | Engine Side |
| *b | Vacuum Reservoir Assembly Side |
| *c | Ventilation |
| *d | No Ventilation |
Check that air flows from the vacuum reservoir assembly side to the engine side.
Check that air does not flow from the engine side to the vacuum reservoir assembly side.
If necessary, replace the check valve sub-assembly.